X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_computation%2Fcsx_lfdeq.ma;h=69f78e094bca1308449ed62b684c511b12a869d2;hb=5c186c72f508da0849058afeecc6877cd9ed6303;hp=67e63613adeea062623ceb2b8234981b0a754d88;hpb=a09b60bd574adf1a7d3e423023009cb20c79d449;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_lfdeq.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_lfdeq.ma
index 67e63613a..69f78e094 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_lfdeq.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_lfdeq.ma
@@ -15,13 +15,13 @@
 include "basic_2/rt_transition/cpx_lfdeq.ma".
 include "basic_2/rt_computation/csx_csx.ma".
 
-(* STRONGLY NORMALIZING TERMS FOR UNCOUNTED PARALLEL RT-TRANSITION **********)
+(* STRONGLY NORMALIZING TERMS FOR UNBOUND PARALLEL RT-TRANSITION ************)
 
 (* Properties with degree-based equivalence for local environments **********)
 
 (* Basic_2A1: uses: csx_lleq_conf *)
 lemma csx_lfdeq_conf: ∀h,o,G,L1,T. ⦃G, L1⦄ ⊢ ⬈*[h, o] 𝐒⦃T⦄ →
-                      ∀L2. L1 ≡[h, o, T] L2 → ⦃G, L2⦄ ⊢ ⬈*[h, o] 𝐒⦃T⦄.
+                      ∀L2. L1 ≛[h, o, T] L2 → ⦃G, L2⦄ ⊢ ⬈*[h, o] 𝐒⦃T⦄.
 #h #o #G #L1 #T #H
 @(csx_ind … H) -T #T1 #_ #IH #L2 #HL12
 @csx_intro #T2 #HT12 #HnT12
@@ -30,6 +30,6 @@ elim (lfdeq_cpx_trans … HL12 … HT12) -HT12
 qed-.
 
 (* Basic_2A1: uses: csx_lleq_conf *)
-lemma csx_lfdeq_trans: ∀h,o,L1,L2,T. L1 ≡[h, o, T] L2 →
+lemma csx_lfdeq_trans: ∀h,o,L1,L2,T. L1 ≛[h, o, T] L2 →
                        ∀G. ⦃G, L2⦄ ⊢ ⬈*[h, o] 𝐒⦃T⦄ → ⦃G, L1⦄ ⊢ ⬈*[h, o] 𝐒⦃T⦄.
 /3 width=3 by csx_lfdeq_conf, lfdeq_sym/ qed-.